Best Answer:Ziipper is on back side length of suit garment bag; I puchased dress bag for a 6'4" male since his shirts were so long. I didn't take out of bag it was packaged in but I would assume the zipper is at least as long as the one in the suit bag. Wonderful product! I have purchased for our entire family and some friends. Is very lightweight, does not add any weight to have to carry. I have carried maybe a dozen items at a time; you would not think you could get that many in 4" of space but you can.